Surely there must be some budding smartphone auteur out there who needs to invest deeply in the feature-length film they're shooting on their iPhone 4. For anyone else, Zacuto's Z-Grip iPhone Cinema Kit might be a bit excessive.
Make no mistake: The Zacuto Zgrip iPhone Pro is completely ridiculous. I mean, it's a $300 iPhone handgrip. But pro video shooters—should they be shooting iPhone 3GS video for some strange reason—will appreciate all the options.